summaryrefslogtreecommitdiffstats
path: root/infra/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/BindingBrokerReader.java
diff options
context:
space:
mode:
Diffstat (limited to 'infra/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/BindingBrokerReader.java')
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/BindingBrokerReader.java96
1 files changed, 96 insertions, 0 deletions
diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/BindingBrokerReader.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/BindingBrokerReader.java
new file mode 100644
index 000000000..68aa3956e
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/BindingBrokerReader.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.fd.honeycomb.v3po.translate.util.read;
+
+import com.google.common.base.Optional;
+import com.google.common.util.concurrent.CheckedFuture;
+import io.fd.honeycomb.v3po.translate.read.ReadContext;
+import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
+import io.fd.honeycomb.v3po.translate.read.Reader;
+import javax.annotation.Nonnull;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Simple DataBroker backed reader allowing to delegate reads to different brokers.
+ */
+public final class BindingBrokerReader<D extends DataObject, B extends Builder<D>>
+ implements Reader<D, B>, AutoCloseable {
+
+ private final InstanceIdentifier<D> instanceIdentifier;
+ private final DataBroker dataBroker;
+ private final LogicalDatastoreType datastoreType;
+ private final ReflexiveReaderCustomizer<D, B> reflexiveReaderCustomizer;
+
+ public BindingBrokerReader(final InstanceIdentifier<D> instanceIdentifier,
+ final DataBroker dataBroker,
+ final LogicalDatastoreType datastoreType,
+ final Class<B> builderClass) {
+ this.reflexiveReaderCustomizer = new ReflexiveReaderCustomizer<>(instanceIdentifier.getTargetType(), builderClass);
+ this.instanceIdentifier = instanceIdentifier;
+ this.dataBroker = dataBroker;
+ this.datastoreType = datastoreType;
+ }
+
+ @Nonnull
+ @Override
+ public Optional<? extends DataObject> read(@Nonnull final InstanceIdentifier<? extends DataObject> id,
+ @Nonnull final ReadContext ctx) throws ReadFailedException {
+ try (final ReadOnlyTransaction readOnlyTransaction = dataBroker.newReadOnlyTransaction()) {
+ final CheckedFuture<? extends Optional<? extends DataObject>, org.opendaylight.controller.md.sal.common.api.data.ReadFailedException>
+ read = readOnlyTransaction.read(datastoreType, id);
+ try {
+ return read.checkedGet();
+ } catch (org.opendaylight.controller.md.sal.common.api.data.ReadFailedException e) {
+ throw new ReadFailedException(id, e);
+ }
+ }
+ }
+
+ @Override
+ public void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, @Nonnull final D readValue) {
+ reflexiveReaderCustomizer.merge(parentBuilder, readValue);
+ }
+
+ @Nonnull
+ @Override
+ public B getBuilder(final InstanceIdentifier<D> id) {
+ return reflexiveReaderCustomizer.getBuilder(id);
+ }
+
+ @Override
+ public void readCurrentAttributes(@Nonnull final InstanceIdentifier<D> id,
+ @Nonnull final B builder,
+ @Nonnull final ReadContext ctx) throws ReadFailedException {
+ throw new UnsupportedOperationException("Not supported");
+ }
+
+ @Nonnull
+ @Override
+ public InstanceIdentifier<D> getManagedDataObjectType() {
+ return instanceIdentifier;
+ }
+
+ @Override
+ public void close() throws Exception {
+ // Noop
+ }
+}